CompTIA A+ Core 2 (220-1202)Operational ProceduresEasy
A technician is installing several new servers in a data center. To ensure proper air circulation and cooling efficiency, which of the following practices should be followed?
- APlace blanking panels in all unused rack spaces.
- BBundle all network cables tightly together for neatness.
- CEnsure all server power supplies are connected to different UPS units.
- DOrient servers with exhaust fans facing the cold aisle.
Show answer & explanationAnswer & explanation
Correct answer: A. Place blanking panels in all unused rack spaces.
Blanking panels prevent hot exhaust air from recirculating into the cold aisle, maintaining temperature differentials and improving cooling efficiency. This is a fundamental practice in data center environmental control.
Why the other options are wrong
- B. Bundling network cables too tightly can impede airflow and make troubleshooting difficult, but it's not the primary concern for overall cooling efficiency compared to blanking panels.
- C. Connecting power supplies to different UPS units is for redundancy, not directly for air circulation or cooling efficiency.
- D. Servers should be oriented with intake fans facing the cold aisle and exhaust facing the hot aisle to facilitate proper airflow.
Blanking Panels
Panels used to fill unused spaces in server racks to prevent hot and cold air from mixing, improving cooling efficiency.
- Installed in server racks
- Crucial for data center cooling
- Prevents air recirculation
Memory trick: Cool racks need no gaps.